There are forty-five students in our class. I have made a survey.36 students say they like to exercise. Most boys play basketball together twice a week. But girls think basketball is difficult for them，they'd like to play volleyball together twice a week. My friend，Tony is god at running. He runs fastest in our class. He runs for thirty minutes on the playground every evening before he goes to bed. Is it interesting？Gray is good at swimming. He goes to the swimming club three times a month in winter，and three times a week in summer. So he is pretty healthy. Some of my classmates have g